Finding the Fourth Proportional to 1,406.49, 1,938.83 and 1,013.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.49 : 1,938.83 = 1,013.37 : x
2. Step 2: Convert to fraction form
   1,406.49/1,938.83 = 1,013.37/x
3. Step 3: Cross multiply
   1,406.49x = 1,938.83 × 1,013.37
4. Step 4: Simplify right side
   1,406.49x = 1,964,747.09
5. Step 5: Solve for x
   x = 1,964,747.09/1,406.49
6. Step 6: Final answer
   x = 1,396.92